Cycle seat



Jan. 16, 1923.

B. BROOKS.

CYCLE SEAT.

HLED SEPT.22, 1920.

4 SHEETS-SHEE] l.

4 SHEETS-SHEET 2.

B. BROOKS.

CYCLE SEAT.

FILED sEPT.22, 1920.

Jan. 16, 1928.

B. BROOKS.

CYCLE SEAT.

FILED sEPT.22. 1920.

Jan. 16, 1923.

4 SHEETS-SHED 3.

m T a I w w M? Q: i

w W: A E

INVENTOR Jan. 16, 1923. 1,442,643. B. BROOKS.

CYCLE SEAT.

FILED SEPT-22, 1920.

4 SHEEi'S- 'SHEET 4 1 fave/20%; r awli e firo ka Patented den. 16, 1923.

currenstares y nane ser ent crates.

BOULTBEE BROOKS, OF'BIBMIINGHANL, ENGLAND, ASSIGNOB TO 3'. B. BROOKS AND COlVIPANY LIMITED, OF BIBMINGHAIYI, ENGLAND.

CYCLE SEAT.

epplication filed September 22, 1920. Serial No. 411,923.

T 0 aZZ 20 7mm it may concern:

Be it known that BoUL'rsnii Bnoons, a subject of the King of Great Britain, residing at Birmingham, England, has invented certain new and useful Improvements in Cycle Seats, of whichthe following is a specification. p

The invention relates to motor-cycle, cycle and analogous saddles and seats, of that type in which the seat proper is supported by a system of parallel-motion members.

The object of the present invention is to provide an improved and simplified method of mounting the saddle top whereby a vertical parallel motion is imparted to the latter, a slight forward or rearward motion preferably being also given to thesaddle-top when the latter is moved in a downward direction. v

Further objects of the invention are to provide 1) means wherebyjthe tension on the springs supporting the saddle top may be adjusted to suit the weightsof different riders, (2) means whereby the inclination of the saddle top may be adjusted at will, (3) the provision of an improved mounting for the, springs, and (4i)v means whereby the saddle can be adapted to any width of machine. Y

The. invention consists essentially in mounting the saddle top at each side upon a plurality of parallel motion cantilever laminated leaf springs arranged one above the other and which are carried by a lived. part of the machine.

According to a further feature of the i11 vention I provide means for adjusting the tension on the springs comprising a bracket member secured to a fixed part of the machine, a screwed member the ends of which engage with the free ends ofthe springs, and a pair of nuts carried by said screwed member, these nuts engaging with upper and lower surfaces of the said bracket member.

I Another feature of the invention provides means whereby the "inclination of the saddle top can be adjusted at will and consi. in securing; the ends oft-he springs supporting the saddle to the brackets carrying same, by means of transverse pins, the pins securing the lower springs being mounted in slots which enable the brackets to pivot alfiout the pins securing the upper springs.

Yet tt'urtheij' feature oft-he invention propositions.

Still a further feature of the invention consists in securing the springs to afixed part of the motor-cycle by means of clips,

one of the securing bolts acting as the pivot pin upon which the springs are free to turn.

Accordingto a modified form of themventionthe saddle is supported at each side by a pair of parallel-motion laminated leaf springs of the compensated cantilever type superimposed one above the other, the forward ends of each pair of springs being jointed to a bracket: member carried by the seat pillar of the machine, whilst the rear extremities of each pair of springs are connected, together by a link member, the rear of the saddle seat being connected to the rear extremity of the upper spring of each pair through the medium of a suitable member.

In order that our invention may be fully understood and more readily carried into practice 1 have appended heretofour sheets of drawings illustrating the same. wherein Figure 1 is afront elevation showing one form of the invention. V a

Figure 2 is a plan view ofFigure Figure 3 is a section 011 the line 3 Figure 1. a r

Figure d is an enlarged front elevation of the spring tension adjusting device.

Figure 5 is a rear elevation of Figure 1. Figure 6 is 'a-"section on the line 66 [Figure 1.

Figure 7 is a perspective view showing a modified form of the invention.

Figure 8 is a front elevation of a modified form of spring.

Figure 9 is" a section Figure 8. 1

Figure urns section on thcline Figure v v Figure 11 is a front elevation of a further modified form ofthc inventiom and Figure 12 is a sectirm onthe line 12-12 Figure 11.

In carrying out this invention as shownuat Figures 1 to 6, the saddle 1 is supported by the upper and lower pairs of parallel compem rated. laminated leaf springs 10 which are. pivotally mounted upon a fixed. part of the machine, such as the carrier 7. The mounting'ior the springs comprise plates 11 secured by bolts 12 to each side of the carrier. Ei'iclosing the top and sides of each spring is a clip 1.3 (Figure. (3) of U-shape provided with holes through which one of the securing bolts pass, the arrangement being such that the spring is free to oscillate about this bolt. which acts both as a pivot pin and also as a means for securing the U. clip to the plate or bracket. One or more rubber or metal stops 28 are provided upon the plate to limit the upwad movement of the springs.

The saddle is mounted upon a pair of angle members 14: which are supported by the forward ends of the springs. The saddle top is secured to thehorizontal portions of these angle members by means of bolts 15 passing through elongated slots 16 in same,

these slots enabling the angle members to be adjusted relatively to each other, according to the width of the carrier of the machine to which the saddle is to be fixed. The forward ends of the springs are secured to the depending portions of the angle members,

the upper springs being secured by transverse pins 17 passing through the eyes of the springs and a hole in the angle member.

The lower springs are secured by pins similar to the upper ones, but these are disposed in ar'cuate slots 18 having a radius equal to ed with means for adjusting the tension of same to accommodate the weights of chii eren't riders. vSecured to both sides oi the carrier of the machine between the rear ends of the upper and lower springs are bracket-s each provided with a pair of parallel holes, 20,. 21, through one of which 21 passes the vertical stay of? the carrier to which the braeketis secured by'means oi bolts Thru the other hole 20 passes a. screwed member 23, the upper and lower ends of which eugage the upper and lower ends of the springs. These upper and lower ends are of U-shape. the side wings 24:.of the U being bridged across by a pin 25 between which. and the base of the U the end of the spring is located.

Mounted on the screwed member are a pair of nuts 26 which bear upon the upper the hole thro ugh which the screwed member passes. All that is necessary to increase the tension on the sprlngs to suit a heavler rider is to slacken' 011 the uppernut and screw up the lower one which operation will cause the screwed member to move vertically downwards bringing the ends of the spring with. it through themediuin oi the U shaped. connection above described. To lessen the tension on the springs this operation is reversed. The adjusting nuts are preferably provided withknurled heads. L i

A.mod ified,form of theinvention. is

shown on-the accompanying drawings at.

being vertically separated and preferably embraced by U-shaped attachment clips 8, both 01 which may beformed by a single metal strip 9.. Thelaminated leaf springs are preferably curved in an upward direction. their torwardends bein normally higher than their rear ends, so that when the saddle seat is movedin a downward direction a slight forward movement is imparted to same owing to the straightening out of the springs. U11der theinfluence of a load the saddle is caused tov move downwards with a vertical parallel motion. owingrto the parah lel leaf springs, thesaddle moving); slightly forwards as the latter are straightenedout 'under the load. I f

Instead of quarter elliptic springs being.

employed the saddle top may be supported at the upper face of'one end and the under face of the opposite. end beingeach built up with a series of laminations 30. so that the whole terms a doublequarter elliptic spring". the built up ei'ldaiol which are counected rospectively to the saddle top and to aliXed part of theniiachine. "These two connections are shown at Figures 9 and 1.0 respectively. ingr out the invention as shown at llig 'url f1. and. 12.. the middle portion of the. saddle seat carries upon its uiu'lersiiile two'pairs 0t depending bracket members 31.. i

one pair on either side of the saddle. Pivoted atabout theiriniddle between. each pair of bracket members, at vertically separated points, are a pair of parallel-.rnotion coinpensa-ted cantilever laminated leaf springs 32. The "forward extremities of each pair of springs are jointed to the respective outer sides of a bracket member 33 carried by the seat pillar 34 of a motor-cycle or the like,

whilst the rear extremities of each pair of thronglrthe medium of a coiled compression spring 35.

The bracket member connecting the forward ends of the two pairs of springs to the seat pillar of the machine is preferably formed with a longitudinal slot 36 for the reception of a bolt 37 whereby it may be llgld:

ly secured to the said seat pillar, the slot admitting of the saddle being adjustedin a longitudinal direction. To admit of the angular adjustment of the saddle the forward end of the lower spring of each pair is jointed to the bracket member by means of a bolt 38 engaging with a curved slot 39 in the latter. Bydoosening the bolt itmay be readily adjusted within the slot, thus altering the tilt of the saddle.

Having fully described my invention, what I desire to claim and secure by Letters Patent is 1. A cycle or motor-cycle saddle, comprising a rigid top, dependent bracket members directly and rigidly secured to said top and lying in spaced parallel relation on opposite sides of the longitudinal mid-line of said top, pairs of parallel-motion cantilever leaf springs arranged in upper and lower planes,

both members of each of said pairs'being directly connected at one end to one of said depending bracket members and at vertically separated points, means secured to said springs for mounting and for carrying said springs upon a fixed part of the machine.

2. A cycle or motor-cycle saddle comprising a rigid top, dependentbracket members directly and rigidly secured to said top, a pair of parallelanotion cantilever leaf springs arranged in upper and lower planes of the saddleand connected to the'two clepending bracket members at opposite sides ot the saddle top. and means for mounting the sand parallel-motion springs upon a fixed part of the machine.

4. A seat or saddle for motor-cycle or like machines comprising a saddle top, a plurality of parallel-motion compensated. cantilever lamina-ted leaf springs, upon each side of, and carrying the said saddle top at their free ends, stops against which the upper races of certain of the springs abut,

and means for pivoting the said springs at about their middle to a fixed part of the machine.

5. A seat or saddle "for motor-cycle or like machines comprising a saddle top, a plurality of parallel-motion. compensated ean tilever laminated leaf springs upon each side of, and carrying the said saddle top at their free ends, stops against which the upper faces of certain of the springs abut, means for plvotlng the said springs at about their middle to afixed part of the machine, and means for adjusting the tension on the said springs to suit. the weights of different riders.

6. A seat or saddle for motor-cycle or like machines comprising a saddle top, a plm rality of parallelmotion compensated cantilever laminated lea'li springs upon each side of, and carrying the said saddle tap at their "free ends, steps against which the upper faces oi certain of the springs abut, means for pivoting the said springs at about their middle to a fixed part of the machine, and means for adjusting the tension on the said springs to suit the weight of difierent riders, such means comprising bracket members mounted upon a fixed part of the machine, screw-threaded members the ends of which engage. with the ends of the springs not carrying the saddle-top, and pairs of nuts carried by the said screwthreaded members, these nuts engaging with the upper and lower-surfaces of the bracket member.

7. A seat or saddle for motor-cycle or like machines, comprising a saddle top, a plurality of parallelanotion cantilever laminated leaf springs upon each side of, and car- -rying the said saddle top, these springs being mounted upon a fixed part or the machine; and means for adapting the saddle to tit machines of varying widths.

S. A seat or saddle tor motor-cycle or like machines comprising a saddle top, a plurality of parallelanotion. compensated cantilever laminated leaf springs, upon each side of. and carrying the said saddle top at their free ends, stops against which the uppertaces of certain oi" thesprxngs abut,

means for pivoting the said spring. at about their middle to a fixed part of the machine; and means for adapting the saddle to fit machines of varying widths .9. A seat or saddle for mot0r-cycle or like machines comprising a saddle top, a plurality of parallel-motion cantilever laminated leaf springs upon each side of, and

carrying the said saddle top, these springs lever laminated leaf springs, upon each side of, and carrying the said saddle top at their free ends, stops against which the upper faces of certain of the springs abut, means for pivoting the said springs at about their middle to a fixed part of the machine;

like machines comprising a saddle-top, a pluand means for adapting the saddle to fit machines of varying widths, the said means comprising a pair of angle members to the vertical arms of which the free ends of the springs are connected, elongated slots in the horizontal arms of the said members and bolts passing through the said slots and adapted to secure the saddle top thereto.

11. A seat or saddle for motor-cycle or like machines comprising a saddle top, a plui rality of parallel-motion cantilever laminated leaf springs upon. each side of, and carrying the said saddle-top, these springs being mounted upona fixed part of the machine; and means for adjusting the inclina-.

tion of the saddle-top.

12. A seat or saddle for motor-cycle or like machines comprising a saddle top, a plurality of parallel-motion compensated can tilever laminated leaf springs upon each side of, and carrying the said saddle top at their free ends, stops against which the upper faces of certain of the springs abut, means for pivoting the said springs at about their middle to a fixed part of the machine; and means for adjusting the inclination of the saddle-top.

13. A seat or saddle for motor-cycle or like machines comprising a saddle top, a plurality of parallel-niotimi cantilever laminated leaf springs upon each side of, and carrying the said saddle-top, these springs beingmounted upon a fixed part of the ma chine, means for adapting the saddle to fit machines of varying widths; and means for adjusting the inclination of the saddle-top.

14;. A seat or saddle for motor-cycle or rality of parallel-motion compensated cantilever laminated leaf springs, upon each side of, and carrying the said saddle-top at their free ends, stops against which the upper faces of certain of the springs abut, means for pivoting the said springs at about their middle to a fixed part of the machine; means for adapting the saddle to fit machines of varying Widths; and means for adjusting the inclination of the saddletop.

15. A cycle or motor-cycle saddle comprising a rigid top, bracket members directly carried by the said top and comprising two depending members at opposite sides of said top, a plurality of parallel-motion leaf springs arranged in upper and lower planes and connected to the said depending bracket members, said parallel motion springs comprising cantilever springs at opposite sides of the saddle and connected to the two depending bracket members at opposite sides of the saddle top, and means for mounting the said parallel-motion springs upon a part of the frame of the machine situated immediately over the rear wheel and so that springs upon opposite sides of the saddle embrace the said rear wheel.

16. A seat or saddle for motor-cycle or like machines comprisingasa-ddle-top, a plurality of parallel-motion compensated cantilever laminated leaf springs upon each side of, and carrying the said saddle-top at their free ends, stops against which the upper faces of certain of the springs abut, means for pivoting the said springs at about their middle to a fixed part of the machine; and means for limiting the upward movement of the springs.

17. A seat or saddle for motor-cycle or like machines comprising a saddle-top, a plurality of parallel-motion cantilever laminated leaf springs upon each side of, and carrying the said saddle-top, these springs being mounted upon a fixed part of the ma- 10h chine, means for adapting the saddle to fit machines of varying widths, means for adjusting the inclination of the saddle-top; and means for limiting the upward movement of the springs. V

18. A seat 01' saddle for motor cycle or like machines comprising a saddle-top, a plurality of parallel-motion cantilever laminated leaf springs upon each side of, and carrying the said saddle-top, these springs being mounted upon a fixed part of the machine, means for adjusting the inclination of the saddle-top; and means for limiting the upward movement of the springs.

19. A seat or saddle for motor-cycle or like machines comprising a saddle-top, angle members upon which the saddle-top is mounted, elongated slots in the horizontal arms of the said angle members, securing bolts disposed in said slots, a plurality of parallel-motion compensated cantilever laminated leaf springs at either side of the saddle-top the free ends of the said springs carrying the aforesaid angle members, clips pivotally mounted upon a fixed part of the machine and embracing the springs about their middle brackets carried by the machine, screw-threaded members carried by the said bracket the ends of Which embrace the anchored ends of the springs, pairs of nuts carried by the screw-threaded members for adjusting the tension on the springs,

stops for limiting the upward movement of the springs, and means for adjusting the inclination oi the saddle-top.

In testimony Whereoi I affix my signature in the presence of two Witnesses.

, BOULTBEE BROOKS. Witnesses:

H. O. PRATT, L. I. MARKS. 

